Published 1990
| Published
Book Section - Chapter
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Proton Modulation Near Solar Minimum Periods in Consecutive Solar Cycles
- Creators
- Moraal, H.
- Other:
- Protheroe, R. J.
Abstract
Observations or the Pioneer/Voyager missions during 1985/1986/1987, together with observations at Earth in 1976/1977 and 1987, are compared with predictions of a steady-state modulation model. The qualitative features of the modulation are well understood, but to get quantitative agreement with observations, drastic modifications have to be made to the Parker spiral magnetic field above the solar poles.
Additional Information
© Organizing Committee of the 21st Int. Cosmic Ray Conference. Provided by the NASA Astrophysics Data System. I gratefully acknowledge the computational and technical assistance of K. R. Lim, a.s well as the stimulating discussions with A.C. Cummings and E.C. Stone. This work was supported in part by NASA under contract NAS-7-918 and grant NGR-05-002-160.Attached Files
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Additional details
- Eprint ID
- 47086
- Resolver ID
- CaltechAUTHORS:20140708-163116152
- NASA
- NAS-7-918
- NASA
- NGR-05-002-160
- Created
-
2014-07-15Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1989-16